Bridge



(No Model.) r I G. D. DUNDAS.

BRIDGE.

No. 320,859. Patented June 23, 1885.

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llnirnn STATES PATENT @rrrcn.

CHARLES D. DUNDAS, OF NORTH AUBURN, NEBRASKA.

BRIDGE.

"JPEC-ZEJL'CATIQN firming part of Letters Patent No. 320,859 dated June 23, 1885.

Ap; licntion filed April 29, 1884.

To (all whom it may concern.-

Be it known that I, CHARLES D. DUNDAS, a citizen of the United States, residing at North Auburn, in the county of Nemaha and State of Nebraska, have invented certain new and useful Improvements in Bridges, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to improvements in bridges, and has forits objects to hold the truss in the proper position and thereby prevent it from humping by high water or wind and thus uncoupling the truss and allowing the bridge to fall in.

The nature of the invention consists in an: choring the truss to the bridge-piling by means of suitable iron rods, which are fastened at the upper ends to the truss and at the lower ends to the piling of the bridge.

The above objects are attained by the de vices illustrated in the accompanying draw ings, forming a part of this specification, in which- A Figure l is an elevation of a part of a bridge, which shows one method of applying this invention in such structures. Fig. 2 is an elevation of a bridge having a truss of different construction to which these anchorrods have been applied.

The letters A A indicate the beams forming the truss, and B the piling. O are the rods which pass through suitable openings iu.or between the beam or beams A, and are kept (No model.)

in position by the nuts a, which fit the threads cut on the ends of the rods 0. The lower ends of the rods 0 are carried down in a diagonal direction and securely fastened by bolts or otherwise to the piling B, as shown in Fig. 1; or, when the truss is made in the form shown in Fig. 2, the rods 0 cross each other near the top and pass through. suitable openings in the beams A, and are secured thereto by the nuts a in the manner hereinbefore described, the lower ends of the rods being attached in any suitable manner to the piling B on each side of the stream.

It will be seen that the rods 0 may be tightened to any desired extent by means of the nut-s a when turned in the proper direction.

Having described my invention, what I desire to secure by Letters Patent and claim is- 1. In a bridge, the beams A and piling B, in combination with the rods 0, having adjust able nuts a, as shown and described, and for the purposes set forth.

In a bridge, the beams A and adjustable rods 0, crossing each other near their upper ends, in combination with piling B, as described, and for the purposes set forth.

In testimony whereof I atfix my signature in presence of two witnesses.

CHARLES D. DUNDAS.

\Vitnesses:

IV. M. HoWDnN,

H. It. COLE. 

